Welcome to The Green Ration Book

The average UK citizen creates 11 tonnes of Carbon Dioxide equivalent (CO2e)
a year. CO2e includes the effects of other greenhouse gasses as well as
the main greenhouse gas, carbon dioxide.

New UK targets aim to cut this by 80%.

Reducing these 11 tonnes by 80% gives a ration of 2.2 tonnes per year.
This makes a daily ration 6kg CO2.

Dividing the ration equally between categories “consumables”, “building”, “transport” and “government”, allows 1.5kg per day.

The estimates below are for CO2e and amount of a 1.5kg daily ration.
This is expressed as a time (e.g. a quarter of a daily ration is given as 6 hours).

Malteasers

CO2e: 0.33kg (5.5 hours)

Pea and Sweetcorn from Kenya

CO2e: 0.23kg (4 hours)

This entry has been updated with information from James Cascio (see below)

Litre of Milk 200 gm CO2 (used in making 350 grammes of cheese)
Cling Film 28 gm CO2 (7gm Co2e per gm plastic film at 4g)

Total 0.23 kg CO2

350 gm Mature Stilton

CO2e: 0.43 kg (7 hours)

This entry has been updated with information from James Cascio (see below)

Litre of Milk 400 gm CO2 (used in making 350 grammes of cheese)
Cling Film  28 gm CO2 (7gm Co2e per gm plastic film at 4g)

Cheeseburger

CO3e: 4.85 kg (3 days 5 hours)

Jamais Cascio has calculated the carbon footprint of a cheeseburger here:

http://www.openthefuture.com/cheeseburger_CF.html

“That’s a total of 3.6-6.1 kg of CO2-equivalent per burger”

He shows his calculations and gives some references.

Should we average his figure to 4.85 kg?

Bottle of Bubbly

CO2e: 1.31 kg (16 hours)

Initially estimated as 9.41 kg

1.1 kg Glass bottle 9.20 kg Co2
Freight London 0.21 kg Co2 (1.1Kg * 0.19 / 10)
No figure for the production of the wine was included.

The available data on the carbon footprint of glass iscontradictory.
More research needed.

Revised to 1.31kg on changes to “Carbon footprint of 1kg General Glass”

Return train journey from York to London

CO2e: 10.08kg (9 days 17 hours)

Distance York to London is 280 km

“Heat” by George Monbiot , (Penguin 2006) gives

p146. Quotes a parliamentary answer for Co2 from different modes of travel
from London to Manchester for each passenger

Car 36.6 Kg Co2 (1.56 passengers)
Train 5.2 Kg Co2 (70% full)
Coach 4.3 Kg Co2 (40 passengers)

Times Online http://travel.timesonline.co.uk/article/0,,17471-1454744,00.html says

“Travelling from London to Manchester, a distance of 181 miles (290km), should
be straightforward but often it is not. ”

The above can be use to give values for Co2 per passenger kilometer

Car 126 gm Co2
Train 18 gm Co2
Coach 15 gm Co2

Is this optimistic for high speed passenger trains?

But this gives a resulting CO2 emmissions of 10.08 kg ( 280 * 18 g) * 2

Result: “CO2e 10.08 kg”

20 km round-trip to a retail park

CO2e: 4.0 kg (2.5 days)

Distance 20 km at 200 gm CO2 per km

Three Bedroom Flat

CO2e: 65 tonnes (433 days)

“Construction Materials Report for the Beddington Zero (Fossil) Energy Development” from BioRegional, http://www.bioregional.com, discusses embodied CO2 in BEDZED

This gives the embodied CO2 for BEDZED as 650 Kgs CO2 per square metre.  That’s 65 tonnes of CO2 for a 100 m2 flat.

Newspaper

CO2e: 0.17kg (3 hours)

Innocent Drinks mention the carbon footprint of a copy of the Daily Mirror here:

http://innocentdrinks.typepad.com/innocent_drinks/2007/03/sustainability.html

They give it as 0.17kg.

Where do they get their data?

Result : “CO2e 0.17kg”

4 apples

CO2e: 0.12kg (2 hours)

Innocent Drinks mention the carbon footprint of an average apple here:

http://innocentdrinks.typepad.com/innocent_drinks/2007/03/sustainability.html

They give it as 0.03kg. So 4 apples 0.12kg CO2e

Where do they get their data?

Result: “CO2e  0.12kg”